Figure 5 - Retroflexed view showing a patulous gastroesophageal junction in a patient with scleroderma.
From the following article
Endoscopic evaluation of esophageal motility disorders
Susan E. McCormick and Richard A. Kozarek
GI Motility online (2006)
doi:10.1038/gimo29
(Source: Courtesy of Drew Schembre, M.D.)
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